Best Software to Reduce PDF Size in 2026: 8 Tools Compared

Adobe Acrobat is the reference PDF tool, and its optimization settings give professionals the most control over file size and quality. You can choose compression levels, downsample images, remove unused objects, and preview the result before saving. Acrobat also offers an online compressor for single files, though paid desktop features go further.

The cost is the main drawback. Acrobat starts at around $14.99 per month with an annual commitment, which is steep if you only compress a file now and then. For professionals who handle PDFs daily and need reliable output, Acrobat is still the safest choice.

Smallpdf is one of the easiest online tools for reducing PDF size. Upload a file, choose basic or strong compression, and download the result in seconds. The free tier covers basic compression with daily limits, while Pro adds strong compression, batch work, and a full set of PDF tools.

Strong compression is the main reason to pay, since the free tier only offers basic settings. Smallpdf also uploads files to its servers, so sensitive documents are better handled with a desktop tool. For a quick, occasional compression, Smallpdf is hard to beat for simplicity.

iLovePDF offers three compression levels: less compression for high quality, recommended compression for a good balance, and high compression for the smallest file. That choice helps when you need to meet an email or upload limit without ruining image quality. The site also offers merge, split, convert, and other PDF tools in one place.

Pricing starts at around $7 per month, with an annual option that lowers the monthly equivalent. Free use covers basic tasks with limits. Like Smallpdf, iLovePDF processes files online, so check its privacy policy for sensitive work. For an affordable all-round online PDF tool, iLovePDF is a strong pick.

Sejda PDF stands out because its free version offers more compression control than most rivals. You can adjust image quality and size, and the desktop app handles files up to a generous size for free use. Sejda also offers a wide set of online PDF tools, including some harder-to-find options such as metadata editing.

Online use has hourly and daily task limits, and paid plans remove those caps. Sejda is less polished than Adobe or Smallpdf for business workflows, but for users who want control without paying at first, it is an excellent choice.

PDF24 Creator is our pick for Windows users who want a free desktop compressor. It installs on your PC, compresses files locally, and includes merge, split, convert, and editing tools. Because files stay on your computer, it suits sensitive documents that you should not upload to a website.

The tool is Windows only, and its interface is more functional than beautiful. Mac and Linux users will need another option. For free, private, desktop compression on Windows, PDF24 Creator is the best value in this list.

Foxit PDF Editor is a business-focused PDF suite with compression, editing, forms, and collaboration tools. Its optimization options let you balance file size and quality, and batch tools help teams process many files at once. Foxit is a common Adobe alternative in offices that want a full PDF editor at a different price point.

Pricing varies by plan and region, so check the current Foxit pricing page for your area. Casual users who only need compression will find Foxit excessive. For businesses that need editing plus compression in one suite, Foxit is a credible alternative to Acrobat.

PDFelement, from Wondershare, offers desktop PDF editing with compression, conversion, forms, and OCR in one app. Batch compression helps when you need to shrink many files at once, and the price is lower than Adobe Acrobat for a yearly plan. A perpetual license option has also been offered in the past, so check the current page.

The full feature set requires a paid plan, and the interface packs many tools into each screen. For users who want a desktop editor plus compression at a moderate price, PDFelement offers good value.

Soda PDF offers online and desktop PDF tools, including compression, editing, conversion, and forms. Its interface is straightforward, which suits users who want a simple tool without learning a complex suite. A free trial lets you test compression before paying.

Pricing varies by plan, so check the current Soda PDF page for the option that fits your use. Soda PDF is less well known than Adobe or Smallpdf, but for a simple desktop and online mix, it is a reasonable choice.